Vin Knight, Mike Iveson, and Lucy Taylor in "The Select" at the McCarter TheaterMark Barton

This weekend, arts organizations across New Jersey are gradually opening their doors, with confirmations of planned performances springing up constantly.

As the lights come back on and the curtains rise, many institutions are offering free performances, discounts — and heat and hot drinks. Others, however, have held out until the last minute to announce cancellations. Below, a roundup of what will and won’t be happening:

The Shakespeare Theatre of New Jersey returns with performances of “Man of La Mancha” today at 2 and 8 p.m. and tomorrow at 2 and 7:30 p.m. in Madison. “Something Wicked This Way Comes,” originally slated for Oct. 29, has been rescheduled for Monday at 7:30 p.m. Tickets are $42 to $80. Call (973) 408-5600 or visit shakespearenj.org. Ticketholders whose performances this week were canceled should call the box office to make exchanges.

The New Jersey Symphony Orchestra will offer free tickets on a first-come, first-served basis for two concerts this weekend. The all-Mozart program includes the Violin Concerto No. 3, the Sinfonia Concertante and the Symphony No. 29 (which replaces the originally scheduled “Verklärte Nacht” by Schoenberg). Augustin Dumay is the conductor and violin soloist, with NJSO principal Frank Foerster as the viola soloist. Performances take place today at 8 p.m. at the State Theatre, 15 Livingston Ave., New Brunswick, and tomorrow at 3 p.m. at the New Jersey Performing Arts Center, 1 Center St., Newark. (The offer does not apply to those who already have tickets, and reservations for the free tickets must be made in person.)

The box offices will open two hours before showtime. Call (800) ALLEGRO or visit njsymphony.org.

Lyrica Chamber Music has postponed its originally scheduled performance of music by Dvorak to March 17. Instead, tomorrow, co-artistic director and pianist David Kaplan, cellist Benjamin Capps and violinist-violist Edwin Kaplan will perform a free all-Beethoven program. Free-will donations to the United Way Hurricane Sandy Recovery Fund will be accepted at the concert.

The music begins at 3 p.m. at the Presbyterian Church of Chatham Township, 240 Southern Blvd., Chatham Township. As of press time, there was no power at the venue, so listeners are advised to dress warmly. Hot coffee and tea will be provided. Call (973) 309-1668 or e-mail lyricachamber@gmail.com.

The Princeton Symphony Orchestra is offering first-come, first-served tickets for $25 to tomorrow’s concert, “Tales of Transformation”; Music director Rossen Milanov leads Rimsky-Korsakov’s “Scheherazade.” Also, in place of the originally scheduled “Colored Field,” by Aaron Jay Kernis, the orchestra will play Borodin’s “Polovetsian Dances,” and Saint-Saens’ “Bacchanale” from “Samson and Delilah.”

The performance takes place at 4 p.m. at the Richardson Auditorium on the Princeton University Campus, 61 Nassau St., Princeton. The offer does not apply to those who already have tickets. Call (609) 497-0020 or visit princetonsymphony.org.

Performances at the New Jersey Performing Arts Center continue as scheduled. In addition to the NJSO’s show tomorrow, gypsy guitarist and violinist Dorado Schmitt and the Django Rheinhardt Festival All-Stars perform at 6 and 8 tonight. Tickets are $48. Call (888) 466-5722 or visit njpac.org.

Cape May Stage continues performances of “Poe, Times Two” today at 3 and 8 p.m. and tomorrow at 3 p.m. The show takes place at the Robert Shackleton Playhouse, Bank and Lafayette streets, Cape May. Tickets are $10 to $35. Call (609) 884-4224 or visit capemaystage.com.

The McCarter Theatre is opening its cafe Terra Teatro, an hour and a half prior to each performance of “The Select” this weekend to offer free coffee (and heat). Shows take place today at 2 and 8 p.m., and tomorrow at 2 p.m. at 91 University Place, Princeton. Tickets are $20 to $100. Call (609) 258-2787 or visit mccarter.org.

The Newark Museum will open its galleries for free from noon to 5 p.m. today and tomorrow. Visitors will be allowed to charge up smart phones and access free Wi-Fi as they warm up. The museum’s cafe will be open, and there will be art and science activities for kids.

Two River Theater Company will present pay-what-you-can matinee performances of “Henry V” and “No Place to Go” this weekend. Evening performances have been canceled because of a 7 p.m. Monmouth County curfew. Shows will run today and tomorrow at 3 p.m. Tickets can be obtained in person only. For more information, call (732) 345-1400 or visit trtc.org.

Centenary Stage Company in Hackettstown and the State Theatre in New Brunswick are running performances as originally scheduled.

The State Theatre’s Monday show by Chris Isaak is now a benefit, with $5 from each ticket ($35 to $75) going toward the Red Cross.

Rutgers University has postponed its opening of “Bengal Tiger at the Baghdad Zoo” to Tuesday at 8 p.m.

Performances have been canceled at the Surflight Theatre, New Jersey Repertory Company and the George Street Playhouse.

Editor’s note: New Jersey’s arts world is in a state of flux following the devastation of Hurricane Sandy. Some theaters, nightclubs, museums and galleries are struggling to get their buildings back in working condition; some artists may have trouble making it to their shows; some towns are still without electrical power. We’ve done our best in this edition to only write about or list shows and events that are still happening, but so much was still undetermined at press time that it’s possible some of the events in these pages have been canceled or postponed. So, it’s a good idea to double-check the event you’re going to is still “on,” before you leave home.